+61-413 786 465

info@mywordsolution.com

## Statistics

Refer to the given frequency distribution for problems 1, 2, 3, and 4.

The frequency distribution below exhibits the distribution for suspended solid concentration (in ppm) in river water of 50 different waters collected. 1) What percentage of the rivers had suspended solid concentration less than 40?

2) Compute the mean of this frequency distribution.

3) In what class interval should the median lie? Clarify your answer. (You don’t have to find the median)

4) Assume that the biggest observation in this dataset is 98. Assume this observation was incorrectly recorded as 988 rather than 98. Will the mean increase, decrease or remain similar? Will the median increase, decrease or remain the same? Describe your answers.

Refer to the given information for problems 5 and 6.

A coin is flipped three times. Suppose A is the event that the outcome of the first flip is a heads. Assume B be the event which the outcomes of second and third flips are both tails.

5) Determine the probability which the outcomes of the second and third flips are both tails, given that the first one is a heads?

6) Are A and B independent? Why or why not?

Statistics and Probability, Statistics

• Category:- Statistics and Probability
• Reference No.:- M969

Have any Question?

## Related Questions in Statistics and Probability

### A student is to be selected randomly from a group of

A student is to be selected randomly from a group of students. For each classification of freshman and sophomore, there is a math major, an art major, and a biology major. The probability of each individual being selecte ...

### Iq test scores of students are normally distributed with

IQ test scores of students are normally distributed with mean μ=100 and standard deviation σ=10. What is the 33th percentile of the IQ scores? For a randomly chosen student, what is the probability that his or her IQ sco ...

### On a certain banking machine customer arrives at an average

On a certain banking machine customer arrives at an average 15 per hour. a. What is the probability that 12 customers will use the machine in the next hour? b. What is the probability that there will be fewer than 3 cust ...

### In a certain state pickup trucks account for 21 of the

In a certain? state, pickup trucks account for 21?% of the? state's registered vehicles. If 100 registered vehicles are selected at? random, what is the expected number of pickup? trucks?

### Assume a firm has 45 million in operating profit the firms

Assume a firm has \$45 million in operating profit. The firm's tax rate is 40%. What is the tax shield of the firm's \$38 million in debt that charges a 10% interest rate?

### Determine the margin of error for an 80 confidence interval

Determine the margin of error for an 80?% confidence interval to estimate the population mean when s? = 36 for the sample sizes below. ?a)n=12 ?b)n=26 ?c)n=54 ?a) The margin of error for an 80?% confidence interval when ...

### Suppose metal shafts produced have a standard deviation of

Suppose metal shafts produced have a standard deviation of 2.8 and a mean diameter of 210 inches. If 84 shafts are sampled at random, what is the probability that the mean diameter of the sample shafts would be less than ...

### What are impacts that flexible work schedules can have on a

What are impacts that flexible work schedules can have on a employee's productivity?

### Your bank has 153 million in loan commitments which are now

Your bank has \$153 million in loan commitments which are now being drawn upon. You aren't sure, but you are beginning to think that the bank may have some problems now. What sort of risk are you connected about, and how ...

### Which of the following techniques could we use to evaluate

Which of the following techniques could we use to evaluate the effect of sales at one coffee shop versus sales at another coffee shop, so see if the two shops might be cannibalizing business from one another?

• 13,132 Experts

## Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

### Why might a bank avoid the use of interest rate swaps even

Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate

### Describe the difference between zero coupon bonds and

Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p

### Compute the present value of an annuity of 880 per year

Compute the present value of an annuity of \$ 880 per year for 16 years, given a discount rate of 6 percent per annum. As

### Compute the present value of an 1150 payment made in ten

Compute the present value of an \$1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int

### Compute the present value of an annuity of 699 per year

Compute the present value of an annuity of \$ 699 per year for 19 years, given a discount rate of 6 percent per annum. As